LONDON – It appears UFC President Dana White has finally reached his tipping point when it comes to the controversial use of testosterone replacement therapy in MMA. Not only is he no longer in support of the practice, but the fiery exec said he’s planning on “testing the s— out of” fighters who are granted therapeutic-use exemptions.

“I’m against it,” White said flatly at Saturday’s UFC on FUEL TV 7 post-event press conference in London. “If you asked me three months ago, it’s legal, it’s sports science. But everyone figures out a way to take a great thing and cheat and make it bad. I think from what I’ve seen over the last year, I’ve seen situations where … what I believe guys are doing is jacking this stuff up through the roof through their entire training camp and getting back down to normal levels right before the fight – which is cheating. I hate it.

“I don’t like it, and I’m going to fight it. And if you are using TRT in the UFC, we’re going to start testing the s— out of you through your entire camp.”

White first revealed his revised stance during a Friday Q&A session with select fans. On Saturday, the practice of TRT was brought to public attention by Tom Watson, who challenged any and all users to meet him in the cage.

“People can disagree with me all they want,” Watson said at the press conference. “I’m in the industry. I fight, and I see it. I don’t know if it’s me, but I look at guys and you can see which guys are on it. It’s a problem that we’re trying to deal with.”

Most recently, it was Vitor Belfort who was approved by the Comissao Atletica Brasileira de MMA (CABMMA) to use testosterone prior to his UFC on FX 7 victory over Michael Bisping in Brazil. “The Phenom” was the subject of much speculation both prior to and following the bout, and CABMMA officials eventually revealed following the fight that Belfort, who was previously suspended for testing positive for a steroid, had been approved for the treatment.

White declined to say if it was that specific situation that led to his new position but admitted he’s tired of the controversy surrounding TRT.

“There have been a couple of situations that have changed my mind about it,” White said. “You know me. I’m always telling you what I think, anyway, but without getting into it, I don’t think I have to. When you see guys coming in that look like they’re on steroids, yet they have a TRT exemption?”

White admitted his company has yet to formulate a precise plan to combat TRT use and that he was simply sharing his feelings on the subject. However, he believes the simple fact that discussions on the subject are so complex proves it’s probably not good for the sport.

“I don’t know enough about it because everybody that we talk to about it – you can talk to four of the smartest, most educated, rational people about it, and they’ll be split on what the answers are,” White said. “Then you start talking about ratios and testosterone-to-epitestosterone. What? This is too complicated. This is bulls—. All these little goofy loopholes. I don’t like it.

“If you’re tested during your training camp, there’s a number that you should be at. That better be where your f—ing number is when you get tested.”

White also didn’t commit to instituting increased testing frequencies for all fighters but wouldn’t shy away from the possibility. Of course, cost and logistics have always been a concern for the promotion. For now, at least, it sounds like the UFC will at least look to work with athletic commissions to try and get a handle on a situation that seems to be on the verge of spreading out of control.

“Listen, I’m no f—ing scientist, man, and every time we try and talk abut this stuff, I sit there and my head just spins, and I say this is bulls—,” White said. “If it’s this f—ing complicated and this many people don’t understand it, it can’t be good. It can’t be good.

“Again, I said this [Friday] at a Q&A for fans, just so that you guys understand this. It’s how I feel, and it’s what I’m working on. What I said was, ‘If you’re on this testosterone replacement therapy, I’m coming for you. We’re going to be testing you, and I’m working with the athletic commissions.’ I haven’t said anything to the athletic commission, but I’m going to make it very clear that I’m not a fan of testosterone replacement therapy.”

As the UFC 189 tour made its last stop in Dublin, featherweight champ Jose Aldo was met with a torrent of abuse from the Irish fans. It might have been unpleasant, but it might also have been just what he needed.